EMPORIA, Kansas - Two Kansas drug charges against former heavyweight boxing champion Tommy Morrison have been dropped because the state trooper who arrested him has died. The Emporia Gazette reports the charges were dropped Monday in Lyon County District Court because Kansas Highway Patrolman Beau Wallace was killed May 26 in a motorcycle accident.

Morrison was charged with possession of hallucinogenic drugs with two prior convictions, a felony, and with misdemeanor possession with intent to use drug paraphernalia.

He was arrested Feb. 17 at the Kansas Turnpike service area four miles north of Emporia. Wallace was killed when a 17-year-old pulled into the intersection from a stop sign and was struck by Wallace's motorcycle. Prosecutors say Wallace was the sole trooper in Morrison's arrest and the case couldn't go on without him.